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3 years ago

In the metric system, what is added to the base unit to create specific values?

Mathematics

2 answers:

Sonbull [250]3 years ago

8 0

Prefixes (centi-, milli-, decca-, deci-, killo-, nano-, etc.)<span />

Scorpion4ik [409]3 years ago

3 0

The answer is prefix. Such as how a centimeter is different to a kilometer. Centi- is a prefix and Kilo- is also a prefix that when added to the base unti, meter, creates different values.

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What is -3 - 9n= 42 I can’t be negative

maw [93]

If you were to correctly simplify this equation, the answer would be a negative.

The answer is: n = -5

Here's how I got my answer:

Step 1: Add 3 to both sides. Which leaves us with $-9n=42+3$

Step 2: Simplify $42+3$ to 45. Which leaves us with $-9n = 45$

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3 years ago

Students at Mendel Middle School are planning a fair for their school's fundraiser. Liam volunteers to help plan the event. The

FinnZ [79.3K]

Answer:

15 hours

Step-by-step explanation:

$x$ is the number of hours that Liam volunteered in the first month

The next month he volunteered $1\dfrac{2}{3}$ times the time he volunteered the first month.

Total time he volunteered in the two months is 40 hours so

$x+1\dfrac{2}{3}x=40\\\Rightarrow x+\dfrac{5}{3}x=40\\\Rightarrow \dfrac{3x+5x}{3}=40\\\Rightarrow x=\dfrac{40\times 3}{8}\\\Rightarrow x=15$

Time he volunteered in the first month is 15 hours.

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2 years ago